Collision of Viscoelastic Spheres: Compact Expressions for the Coefficient of Normal Restitution

Details Collision of Viscoelastic Spheres: Compact Expressions for the Coefficient of Normal Restitution Collision of Viscoelastic Spheres: Compact Expressions for the Coefficient of Normal Restitution

2011-02-25

arxiv.org/abs/1102.5247v1

Physics

Condensed Matter

Materials Science

4 pages, 4 figures

Scientific paper

The coefficient of restitution of colliding viscoelastic spheres is analytically known as a complete series expansion in terms of the impact velocity where all (infinitely many) coefficients are known. While beeing analytically exact, this result is not suitable for applications in efficient event-driven Molecular Dynamics (eMD) or Monte Carlo (MC) simulations. Based on the analytic result, here we derive expressions for the coefficient of restitution which allow for an application in efficient eMD and MC simulations of granular Systems.

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